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arXiv 1905.04776math.AGmath.CO
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sonc锥的代数边界

The algebraic boundary of the sonc cone

Jens Forsgård, Timo de Wolff

摘要:

在这篇文章中,我们探讨了非负性,$A$ -判别式理论和热带几何之间的联系。对于整支撑集$A \subset \mathbb{Z}^n$,我们覆盖的sonc-锥的边界的半代数集,参数化的热带超曲面的家庭。作为一个应用程序,我们表征一般的支持集的sonc锥等于稀疏非负锥,我们描述了半代数分层的sonc锥的边界在单变量的情况下。

英文摘要:

In this article, we explore the connections between nonnegativity, the theory of $A$-discriminants, and tropical geometry. For an integral support set $A \subset \mathbb{Z}^n$, we cover the boundary of the sonc-cone by semi-algebraic sets that are parametrized by families of tropical hypersurfaces. As an application, we characterization generic support sets for which the sonc-cone is equal to the sparse nonnegativity cone, and we describe a semi-algebraic stratification of the boundary of the sonc-cone in the univariate case.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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